Question

Determine a equação cuja as raízes são 3 e 5

Answer 1

(x - x')(x - x'')

(x - 3)(x - 5) =

x^2 - 5x - 3x + 15 = x^2 -8x + 15

Answer 2

$(x-3)(x-5)\to \\\\ x^{2} -5x-3x+15=0\to \\\\ x^{2} -8x+15=0$